Introduced dynamic loading of middleware bindings and other generic

Introduced dynamic loading of middleware bindings and other generic
libraries.

Dynamic loading of middleware libraries including possibilities to
configure the loading process now is available. Also added utility
functions on CommonAPI level to support loading of libraries of
generated code / other generic libraries. Configuration now has its own
source module. Added several unit tests to confirm correctness.
gitignore, README and inline documentation updated accordingly.

Change-Id: Ia11d91a5f8de5b8bbb2ae9844324f050a926579e